Improved apparatus for rendering tallow



- ECKEL & SCHUYLER Rendering Apparatus.

Patented Aug. 14. 1866.,

Inventor,

Witnesses:

[\M. PHOTO-L] THO C0. N.Y. (OSBORNE? PROCESS.)

' her, 0, underneath it.

UNITED STATES PATENT OFFICE.

JOHN J. EOKEL A ND .ISAAO S. SOHUTLER, OF NEW YORK, N. Y.

IIMP ROVED APPARATUSjFOR RENDERING TALLOW.

Specificationforming part of; Letters Patent No. 57,104, dated August 14, 1866..

.To all whom it may concern accompanying drawings, forming part of this specification, in which- Figure 1 is a plan or top view of our invention Fig. 2, a side v1ew of the same, partly in section; Fig. 3 a front view of the same,

partly in section.

Similar letters of reference indicate like parts.

dissemination of vapors and unpleasant odors from kettles in which tallow is being rendered,

and to utilize said vapors byinjecting them into the fire-chambers under the kettle or under a steam-boiler, rendering them'available as fuel. l

The rendering of tallow in open kettles is attended with a very offensive smell-so much so that the process is, as a sanitary measure, prohibited in the densely-occupied portions of large cities, and in New York city establishments of this kind in the suburbs, with the exception of our own, now using this improvement, have received warning to close unless they also adopt it.

The invention consists in cooking the offal or meat containing the tallow in covered or partially-covered kettles, and drawing the vapors therefromby means of a suction or vacuum produced by a fan, bellows, pump, or other mechanical device, and by the same device,

when practicable, injecting the vapors into the fire-chamber underneath thekettle, or into the fire-chamber underneath a steam-boiler when the tallowis rendered by steam.

AA represent two jackets or cases,in which i the ordinary rendering-kettles B B are fitted,

covered at the top, one, B, having a fire-cham- The covers D of these jackets or cases are provided or formed with lids a, to admit of the offal ori meat being readily inserted in the kettles and the tallow and scraps removed therefrom. The contents of the kettle B are heated by a fire underneath, but those of kettle B are heated by steam, a jacket, 0, being placed below said kettle to form a steam-chamber, D, into which steam is admitted from a steam-boiler through a pipe, E, the water of condensation being allowedto-escape through a cock, F.

From the top of each jacket or case A A a pipe, Gr, passes, the ends of which communicate with a common pipe, H, leading into the case I of a fan or blower, J. Each pipe G is provided with a valve, K, by which either jacket or case may be cut off from the case I when desired. I

L is a pipe which leads from the fan-case into the fire-chamberO of the jacket or case A, and M is a pipe which leads from the firechamber of a steam-boiler into pipe L, L being The object of this invention is to avoid the provided with a valve, N, between the junction of M' and the fire-chamber O, and M being provided with a valve, 0, so that either firechamber may be cut off from the fan-case, as desired.

A The operation will be readily understood. When both kettles are used the valves K of the pipes G, as well as the valves N O of the pipes L M, are opened, the kettles B B supplied with the offal or meat containing the tallow, the fire kindled in the fire-chamber G, and

steam from the boiler admitted into chamber D, thefan or blower J is put in motion, and a suction. thereby produced in the pipes Gr G H, which draws the vapor from the contents of the kettles into the case I, the fan or blower not be much of an object, the blower or fan may impel the vapors from the kettles through a coil immersed in cold water, and the vaporbe thereby condensed. This of course would prevent any smell escaping from the building.

We would remark that it is essential to draw the vapor from the confined kettles, in order to preserve the scraps,which are every ters Patent, is

I 1. In rendering tallow, the drawing off of the vapor or vapors from the contents of covcred or confined or partially-confined kettles by means of a suction or a vacuum produced in pipes by any suitable mechanical means.

2. The injecting of the vapor or vapors drawn off from the kettles into the fire, by which the contents of the kettles'are cooked, either by a direct application of the fire or through the agency of steam generated by the same, substantially as set forth.

JOHN J; EGKEL. ISAAC S. SGHUYLER.

Witnesses M. M. LIVINGSTON, ALEX. F. ROBERTS. 

